Controller for apex locator



FIG. 1 is a front elevation of a controller for apex locator;

FIG. 2 is a rear elevation thereof;

FIG. 3 is a right side elevation thereof;

FIG. 4 is a left side elevation thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is a perspective view thereof in a power-on state;

FIG. 9 is a front elevation thereof in a power-on state; and,

FIG. 10 is a top plan view thereof in a power-on state.

Portions of the controller for apex locator shown in broken lines form no part of the claimed design.

The product is a dental instrument for measuring root canal length. 

CLAIM The ornamental design for a controller for apex locator, as shown and described. 